I'm having a issue with my ac system, I have a leak but I can't find it. I took it to the mechanic he checked it and refilled the system 1 week later it was blowing hot air. So I bought this special ac refill with dye in it refilled it and I tried to look for the leak all over the engine bay but still no luck. Compressor and the ac lines around it seems ok no leak the condenser seems fine also. I'm really getting stressed and might end up going to the dealer.